i fail to see how the difficulty of problems and in particular how "commit yourself to delivering progress to consumers, and adapting to what that entails" make "not falling in love with the solution" bad advice.

you are absolutely right that the real focus should be to improve the lives of people. but that is tangential to focusing on problems vs solutions.

when someone is in love with their solution, the first step is to realize that they need to focus on the problem, and then the next is that they need to focus on the people whose problems they are trying to solve.

so the advice in the article is ok, it could probably be better...

greetings, eMBee.